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What the FDA labels say about taking them together

Fluconazole and nortriptyline

Fluconazole's FDA label (Fluconazole) of April 2, 2026 names nortriptyline in its drug interactions section; the nortriptyline label PlainMeds reads does not name fluconazole. The fluconazole label: “Amitriptyline, nortriptyline Fluconazole increases the effect of amitriptyline and nortriptyline.”

Check it at the source: the fluconazole FDA label on DailyMed (effective April 7, 2026, Zydus Pharmaceuticals (USA) Inc.); the nortriptyline FDA label on DailyMed (effective December 4, 2024).

What does the fluconazole label say about nortriptyline?

Fluconazole label (Mylan Pharmaceuticals Inc., April 2, 2026), drug interactions

Amitriptyline, nortriptyline Fluconazole increases the effect of amitriptyline and nortriptyline.

Source: FDA drug label (Fluconazole, NDA020090), Mylan Pharmaceuticals Inc., effective April 2, 2026 (SPL set 737e0fac-a2d2-4053-a0d7-edbfb6248f69), via openFDA

Source: FDA drug label (fluconazole), Zydus Pharmaceuticals (USA) Inc., effective April 7, 2026 (SPL set d1364455-1537-46d4-b093-38cca3be778f), via openFDA; the full label on DailyMed

What does the nortriptyline label say about fluconazole?

Nortriptyline's label (effective December 4, 2024) does not name fluconazole in these sections. A label lists what its studies and reports found; it is not a complete list.

Source: FDA drug label (PAMELOR), SpecGx LLC, effective December 4, 2024 (SPL set e17dc299-f52d-414d-ab6e-e809bd6f8acb), via openFDA; the full label on DailyMed

These are the labels' own sentences. PlainMeds does not grade interactions; a pharmacist or prescriber can say what they mean for one person's medicines.

Both medicines on the record

41Fluconazole generic labelers
25Nortriptyline generic labelers
FluconazoleNortriptyline
Labeled forFungal infections, Urinary tract infectionsDepression
Boxed warningNoYes
Pharmacy cost (NADAC)$0.380 per tablet 200 mg tablet$0.113 per capsule 10 mg capsule
Shortage nowNo current entryNo current entry

Source: FDA NDC Directory, CMS NADAC of October 7, 2026 and the FDA Drug Shortage Database (FDA files October 8, 2026)

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